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Salim Mehsud, from Pakistan's South Waziristan tribal agency, was first displaced by conflict.

For over three years he lived at a camp in the town of Dera Ismail Khan in Khyber Pakhtoonkhwa Province, after the military launched an operation against militants in his home area.

Now he has moved again - this time to Khyber Pakhtoonkhwa's capital, Peshawar - for entirely different reasons.

"I had no choice. My four small children were literally starving because the ration of wheat flour given to us was cut… and this made it impossible to fill stomachs," he told IRIN. "I couldn't bear to watch my children suffer." He is currently living with relatives and looking for a job.

In January, the World Food Programme (WFP) cut the ration size of its food basket for about one million internally displaced persons (IDPs) and 700,000 people affected by floods because of a funding shortfall. It is now giving each family 40kg of wheat flour per month, instead of 80kg. Other commodities are not affected by the cuts.

To continue distributing full rations for the rest of the year, it needs an additional US$103 million.

In the towns of D.I.Khan and Tank, where most IDPs from South Waziristan are based, there have been angry protests over the ration cuts.

Some of these protests, by Mehsud tribesmen, are continuing, according to the South Waziristan coordinator for the Federally Administered Tribal Areas (FATA) Disaster Management Authority, Syed Umar.

"We are talking to Mehsud elders, because tribesmen have in some cases blocked distribution centres, refusing to accept the reduced food ration or allow others to do so," he told IRIN from D.I.Khan.

WFP spokesperson Amjad Jamal said the government, together with WFP's implementing partners, are discussing the situation with IDP elders, and "in many areas, the situation is normalizing."

But he warned:

"The ongoing conflict in parts of FATA has already impacted food intake among IDP families. They have no means of livelihood other than relief assistance from WFP, other UN agencies and the government. This cut will further impact their health, especially that of children and women."

IDPs and aid workers fear the reduced supply will now become the norm.

"Where will funds come from? The IDPs have no choice but to take what they can get, so they are taking the lesser amount, although this is simply not enough to manage," Abdul Ghazi, a volunteer from the charitable Khidmat Foundation, told IRIN.

Jamal is more optimistic, pointing out that renewed funding in July last year allowed the full ration to be restored, after a similar cut was made.

But for now, this is only a hope, and in the meantime, Ghazi said, families are "desperate